body{
    background: url(../images/bg.jpg) repeat;
}
.panel:nth-child(1){
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: auto;
    height: 250px;
}
.panel-body,.panel-header{
    background: rgb(0,0,0,0.2);
    border: none;
    color: #fff;
    text-align: center;
    width: 350px;
}
#btn_send{
    background: #27B5F2;
    color: #fff;
    border: none;
    float: right;
}
